Deep Dive
1. Major SDK Overhaul with New Modules (September 2025)
Overview: This major update to the TAC SDK (v0.7.0) introduced several new modules that make it easier for developers to build complex applications. It simplifies working with different asset types and improves the reliability of sending transactions across chains.
The release added a new Assets Module for handling fungible tokens, NFTs, and TON assets, reducing boilerplate code. A built-in Simulator Component allows developers to estimate gas and fees before sending transactions, preventing failed attempts. The update also introduced TACTransactionManager and TONTransactionManager classes to streamline cross-chain execution, and added support for sending up to 254 transactions in a single batch for certain wallets, significantly improving efficiency.
What this means: This is bullish for TAC because it directly empowers developers. Building dApps becomes faster and more reliable, which can lead to more applications launching on TAC. Features like pre-transaction simulation mean fewer errors for end-users, leading to a smoother experience that could help attract Telegram's massive user base.
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2. Enhanced Cross-Chain Transaction Features (June 2025)
Overview: The v0.6.3 and v0.6.4 updates focused squarely on improving the core bridge functionality between TON and TAC. These changes give developers more control and make the bridging process more robust.
Key additions include a new method to send multiple cross-chain transactions at once (sendCrossChainTransactions) and support for batching these operations. Enhanced error handling was implemented to provide clearer feedback if a transaction fails. The SDK also switched its default contract opener to use a TAC endpoint, which should improve connection stability and performance for bridge-related actions.
What this means: This is neutral to bullish for TAC as it strengthens its fundamental value proposition: being a seamless bridge for assets and data. More reliable and flexible bridging tools are critical for attracting liquidity and users from the TON ecosystem, which is essential for TAC's long-term growth and utility.
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3. Core Infrastructure and Fee System Upgrades (May 2025)
Overview: The v0.6.1 and v0.6.2 releases laid important groundwork for the network's economy and technical stack by formalizing fee mechanisms and upgrading core components.
This update introduced fee support for cross-chain transactions, a crucial step for sustainable network operations. Developers gained access to new methods like getTransactionSimulationInfo to calculate costs upfront. The SDK also integrated a LiteSequencerClient to handle specific requests and upgraded the entire system to use the v3 sequencer, which typically includes performance and stability improvements.
What this means: This is bullish for TAC as it moves the protocol from a test phase to a more mature, production-ready state. Implementing a clear fee model is essential for validators and network security. Upgrading core infrastructure like the sequencer reduces technical risk and paves the way for higher network capacity and reliability.
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Conclusion
The latest codebase updates reveal a development team focused on maturing TAC's core infrastructure—enhancing its cross-chain bridge, formalizing its fee economy, and providing robust tools for developers. This trajectory is essential for transitioning from a launch phase to a sustainable, utility-driven ecosystem. With the network having recovered from a recent halt, will the next SDK updates focus on further hardening security and simplifying user onboarding?